Home / 137,743.20-206,614.80-93,128.40

Finding the Fourth Proportional to 137,743.20, 206,614.80 and 93,128.40

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Solution

The fourth proportional to 137,743.20, 206,614.80 and 93,128.40 is: 139,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,743.20 : 206,614.80 = 93,128.40 : x
  2. Step 2: Convert to fraction form
    137,743.20/206,614.80 = 93,128.40/x
  3. Step 3: Cross multiply
    137,743.20x = 206,614.80 × 93,128.40
  4. Step 4: Simplify right side
    137,743.20x = 19,241,705,740.32
  5. Step 5: Solve for x
    x = 19,241,705,740.32/137,743.20
  6. Step 6: Final answer
    x = 139,692.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.